Automatically rinsing baby bottle

ABSTRACT

A nursing bottle for automatically rinsing a baby&#39;s teeth by independently dispensing first and second liquids, includes a nursing bottle having a nipple, a rinsing device having a dispensing end and a buoyant valve attached to the dispensing end for retaining the second liquid within the rinsing device while the nursing bottle receives the first liquid. The valve retains the second liquid within the rinsing device when the bottle is at least substantially inverted due to a buoyant force produced by the valve against the dispensing end. The buoyant force of the valve is greater than the force of gravity which acts on the valve until the first liquid is substantially dispensed from the bottle. After which, the force of gravity overcomes the buoyant force of the valve and the valve is pulled towards the nipple by the force of gravity. As a result, the valve automatically releases the second liquid from the rinsing device and into the nipple to rinse the baby&#39;s teeth.

This application is a Continuation-In-Part of application Ser. No.08/356,723, filed Dec. 15, 1994, now, U.S. Pat. No. 5,617,966 which is aContinuation-In-Part of application Ser. No. 08/274,204, filed Jul. 12,1994, now abandoned, the disclosure of which is hereby incorporated byreference.

FIELD OF THE INVENTION

This invention relates generally to a nursing bottle, and moreparticularly to a nursing bottle for babies which automatically rinsesthe baby's teeth after the contents of the nursing bottle have beenemptied by dispensing a first liquid and subsequently dispensing asecond liquid, independent of the first liquid, thus preventing decay ofthe baby's teeth.

BACKGROUND OF THE INVENTION

Typically, a baby goes to sleep after drinking a bottle of milk orformula from a nursing bottle. Likewise, a baby will fall completelyasleep with a nursing bottle in its mouth while still drinking from thebottle. This results in the milk or other contents from the nursingbottle maintaining contact with the baby's teeth for extended periods oftime which results in tooth decay of the baby's teeth.

A number of improvements have been made to the conventional nursingbottle for administering a second liquid which is distinct from thecontents of the nursing bottle. However, these improvements havetypically been in the area of medicine dispensing in connection with anursing bottle. In these systems, a conventional baby bottle has a tubeor syringe either within the bottle or on the exterior of the bottle. Afirst solution such as baby formula is placed within the bottle whilemedicine is placed within the tube. The two solutions are either mixedprior to administering both solutions to the baby or the second solutionis manually released into the baby's bottle while the baby is ingestingthe first solution. In both systems, the second solution is releasedmanually and prior to the first solution being substantially emptiedfrom the bottle.

For example, U.S. Pat. No. 2,680,441 to Krammer, issued Jun. 8, 1954,discloses a nursing bottle having a separate syringe attached to thenipple of the nursing bottle. The syringe contains a rubber bulbadjacent to the closed end of the bottle which must be manuallydepressed to empty the contents of the syringe.

More recently, U.S. Pat. No. 4,821,895 to Roskilly, issued Apr. 18,1989, discloses a nursing bottle having a separate syringe attached tothe nipple in a similar manner as the Krammer reference. The plunger ofthe syringe must be manually depressed to administer the contents of thesyringe into the nipple of the nursing bottle.

Likewise, U.S. Pat. No. 5,244,122 to Botts, issued Sep. 14, 1993, alsodiscloses a nursing bottle having a manually operated syringe disposedwithin the nursing bottle. However, as with the prior art, the plungerof the syringe must be manually operated which is inconvenient.

A related type of nursing bottle comprises two separate compartmentswithin the nursing bottle, wherein one compartment is punctured torelease the contents into the second compartment. For example, U.S. Pat.No. 2,786,769 to Greenspan, issued Mar. 26, 1957, discloses a nursingbottle having an inner compartment which is punctured using a threadedshank or screw, which must be manually operated from the exterior of thenursing bottle. However, the Greenspan reference does not rinse thebaby's teeth as it is incapable of delivering a first liquid of thenursing bottle and subsequently delivering a second liquid to the baby.Instead, Greenspan discloses the manual mixing of both liquids prior todelivery of the solution to the baby.

Similarly, U.S. Pat. No. 3,741,383 to Wittwer, issued Jun. 26, 1973,discloses a nursing bottle having an inner compartment which ispunctured with a sharp object such as a needle prior to administeringthe contents of the nursing bottle to the baby.

Another nursing bottle design is disclosed in U.S. Pat. No. 2,655,279 toWolf, issued Oct. 13, 1953, wherein a flexible tube having a weightedend is placed within the nursing bottle. The tube has a hollow borerunning throughout which allows passage of the contents of the nursingbottle to the nipple. The first end of the tube is attached to thenipple while the second end of the tube is placed near the bottomsurface of the nursing bottle. The weighted member enables the tube tobend when the nursing bottle is moved from a vertical to a horizontalorientation. As a result, the second end of the tube remains submergedin the contents of the nursing bottle regardless of the orientation ofthe bottle thereby eliminating the excessive intake of air. However,this nursing bottle does not provide two separate compartments forindependently delivering two separate liquids but instead provides atube for delivering only one liquid.

Medicine dispensing nursing bottles are known and disclosed in, forexample, U.S. Pat. No. 5,029,701 to Roth at al., issued Jul. 9, 1991,which has a medication vile disposed within the bottle. However, thisnursing bottle does not allow any liquid to be dispensed from within thebottle itself but only from the medication vile which is completelysealed in relation to the nipple. Therefore, the bottle only houses thevile and is not in open communication with the it.

Accordingly, it would be desirable to provide a nursing bottle capableof delivering a first liquid to a baby, such as baby formula, and thenrinsing the first liquid from the baby's mouth by subsequentlydelivering a second liquid, such as fluoride water, wherein the secondliquid is delivered automatically upon the first liquid beingsubstantially dispensed from the bottle.

SUMMARY OF THE INVENTION

Accordingly, it is an object of the present invention to provide animproved nursing bottle for rinsing a baby's teeth after drinkingformula from the nursing bottle.

It is a further object of the present invention to provide a nursingbottle for rinsing a baby's teeth by automatically dispensing a secondliquid subsequent to a first liquid.

In carrying out the above and other objects of the invention in oneform, there is provided a nursing bottle, comprising a bottle, rinsingdevice, nipple and buoyant valve. The bottle has an open end forreceiving the first liquid and a second closed end for retaining thefirst liquid. The rinsing device stores a second liquid and has adispensing end adjacent the open end of the bottle for dispensing thesecond liquid within the bottle. The nipple is mounted on the open endof the bottle for dispensing the first and second liquids to the babythrough the discharge hole of the nipple. The valve is positionedadjacent the dispensing end of the rinsing device for releasablyretaining the second liquid within the rinsing device when the bottle isat least substantially inverted as the valve produces a buoyant forceagainst the dispensing end of the rinsing device. The buoyant forceproduced by the valve is greater than the force of gravity which acts onthe valve until the first liquid is substantially dispensed from thebottle. After which, the force of gravity overcomes the buoyant force ofthe valve and the valve is pulled towards the nipple by the force ofgravity. As a result, the valve automatically releases the second liquidfrom the rinsing device and into the nipple to rinse the baby's teeth.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of the preferred nursing bottle of the presentinvention.

FIG. 1a is an enlarged view of the preferred buoyant valve of thepresent invention.

FIG. 2 is a side view of the preferred buoyant valve in an alternateembodiment of the present invention.

FIGS. 3-6 are side views of alternate buoyant valves of the presentinvention.

FIGS. 7-9 are side views of the alternate hook-like protrusion valve ofthe present invention.

FIGS. 10 and 11 are side views of the alternate buoyant valve andalternate hook-like protrusion valve of the present invention inoperation.

FIG. 12 is a side view of an alternate buoyant valve with an aeratingtube attached to the second end of the tube.

FIG. 12a is an isolated view of the buoyant cap and sealed chamber ofFIG. 12.

FIG. 13 is a side view of the alternate buoyant valve of FIG. 12 withthe aerating tube attached adjacent the first end of the tube.

FIG. 14 is a side view of an alternate embodiment with the rinsingdevice externally attached to the bottle and two aerating tubesextending from the rinsing device.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1-14, a nursing bottle 1 for babies includes aconventional bottle 2 having a screw-threaded neck 3, an annularscrew-threaded bottle top 4, and a rubber teat or nipple 5 as is wellknown in the art. The nursing bottle 1 contains a rinsing device,preferably in the form of a hollow tube 6, positioned along a verticalaxis 16 of the bottle 2. The tube 6 has first and second ends 7 and 8,respectively, wherein the first end has an opening 13 which ispositioned in close proximity to the nipple S while the second end 8 ispositioned in close proximity to an end wall 9 of the bottle 2. Thesecond 8 may be attached, either permanently or releasably, to the endwall 9 but is preferably unattached. The bottle 2 receives a firstliquid 2a such as milk or baby formula while the tube 6 receives asecond liquid 6a such as water or a fluoride solution.

In the preferred embodiment, the tube 6 is positioned within the bottle2; however, the tube 6 may be positioned on the exterior of the bottle2. Furthermore, the tube 6 may be attached to a side wall 18 of thebottle 2 for delivery of the second liquid 6a to the bottle 2 through anarmature 10 having an opening 11 as shown in FIG. 2. This enables thetube 6 to be filled without removing the nipple 5.

The first end 7 of the tube 6 preferably comprises a buoyant valve whichretains the second liquid 6a within the tube 6 until the tube 6 issubstantially inverted relative to the vertical axis 16. The buoyancyforce exerted by the buoyant valve against the opening 13 of the tube 6,when the bottle 2 is substantially inverted, overcomes the force ofgravity and retains the second liquid 6a within the tube 6 until thefirst liquid 2a is substantially dispensed from the bottle 2.

Preferably, the valve comprises a buoyant circular ring 24 (FIGS. 1-2)which encloses holes 22 in the tube 6 or an armature 10 to retain thesecond liquid 6a within the tube 6 until substantial delivery of thefirst liquid 2a from the bottle 2. However, the valve may comprise avariety of forms without deviating from the intent of the invention. Forexample, the valve may comprise a buoyant lid 14 attached by a hinge 15directly to the tube 6 or to the armature 10 (FIGS. 3-6 and 10); ahook-like projection 20 which protrudes from the first end 7 of the tube6 to substantially cover the opening 13 (FIGS. 7-9 and 11); a buoyantcap 28 having a sealed chamber 27 to increase buoyancy and also anaerating tube 26 attached substantially adjacent the second end 8 of thetube 6 (FIGS. 12 and 12a) and also attached substantially adjacent thefirst end 7 of the tube 6 (FIG. 13); or first and second aerating tubes29 and 30 (FIG. 14) attached to the tube 6.

In all of the embodiments, with the exception of the hook-likeprotrusion 20 of FIGS. 7-9 and 11, the movement of the buoyant valve isa function of the orientation of the bottle 2. As the bottle 2 is movedfrom a vertical (i.e. upright) position as shown in FIGS. 1-9 and 12-14to a substantially inverted position as shown in FIGS. 10 and 11, theforce of gravity will act on the valve, depending on the level ofinversion as the level of inversion will determine the amount of thevalve which is submerged. As long as the first liquid 2a within thebottle 2 substantially covers the valve, the second liquid 6a will beretained within the tube 6 due to the buoyancy force of the valve actingagainst the dispensing end 7 of the tube 6. After the first liquid 2a issubstantially dispensed from the bottle 2, the valve will not besubmerged and there will be no buoyancy force to act against the tube 6.Instead, the valve will open due to the force of gravity pulling thevalve downward toward the nipple 5. In the preferred embodiment, thecircular ring 24 will be pulled downward toward the nipple 5, exposingthe holes 22 and allowing the second liquid 6a to drain from the tube 6into the bottle 2. This releasing of the second liquid 6a occursautomatically, after the first liquid 2a has been substantiallydispensed, without the need to manually release the second liquid 6a asin the prior art.

Referring to FIGS. 1 and 2, the preferred valve comprises the circularring 24 formed of a buoyant material, thus producing a buoyancy forcewhen submerged within the first liquid 2a. The buoyant ring 24 enablesthe first and second liquids 2a and 6a to be ingested independently,that is, the second liquid 6a is ingested after substantial delivery ofthe first liquid 2a to the baby. The ring 24 is positioned substantiallyadjacent to the opening 13 (FIG. 1) having a removable cover 23 withextensions 31 which stabilize the tube 6 within the bottle 2 without theneed to permanently or temporarily affix the tube 6 to the bottle 2. Inthe preferred embodiment, the cover 23 has four equally-spacedextensions 31 in the form of a cross-bar or "X" which project outward.This enables the tube 6 to be used as a separate insert which may bepre-packaged and disposable, similar to conventional disposable babybottles.

In an alternate embodiment, the ring 24 is attached substantiallyadjacent to the opening 11 (FIG. 2) of an armature 10 which extends fromthe tube 6 and is covered by a cover 12. The ring 24 operates in thesame manner as the ring 24 of FIG. 1; however, the tube 6 may be filledwithout removing the nipple 5. In FIG. 2, the opening 13 of the tube 6is covered with the cover 23 while the opening 11 of the armature 10 iscovered with the cover 12.

Preferably, the cover 12 is removably attached to the opening 13. Thecover 12 may comprise a rubber stopper which engages the opening 13using a press fit or may threadably engage the opening 13 withoutdeviating from the intent of the invention. Furthermore, the tube 6 maybe pre-filled for convenience, thus eliminating the need for any type ofremovable cover.

After the second liquid 6a is inserted within the tube 6, the opening 13at the first end 7 of the tube 6 is sealed using the cover 23. Thebuoyant circular ring 24 is preferably positioned on the first end 7 ofthe tube 6 and is prevented from moving towards the second end 8 by apin 21 when the bottle 2 is substantially inverted. When the circularring 24 is held against the pin 21 due to the force of buoyancy of thering 24, the ring 24 covers the holes 22 formed at the first end of thetube 6.

In operation, the bottle 2 is filled with a first liquid 2a and the tube6 is filled with a second liquid 6a. When the bottle 2 is substantiallyinverted, the first liquid 2a will move from the end wall 9 towards thenipple 5. Since the circular ring 24 is formed of a buoyant material,the ring 24 exhibits a buoyancy force and floats upwards, towards theend wall 9. The ring 24 will thus engage the pin 21 and cover the holes22 as shown in FIG. 1. As the first liquid 2a is substantially dispensedfrom the bottle 2, the first liquid 2a no longer submerges the circularring 24 and the buoyancy force is diminished depending on the level ofsubmersion. As a result, the force of gravity overcomes the force ofbuoyancy of the ring 24 and the force of gravity pulls the ring 24towards the nipple 5. Consequently, the holes 22 are exposed and thesecond liquid 6a automatically drains from the tube 6, into the bottle 2and towards the nipple 5 where it is dispensed to the baby through adischarge hole 17. The baby will then continue to feed on the bottle 2,thus delivering water or a fluoride solution to the baby through thedischarge opening 17 in the nipple 5. The water will then rinse theformula from the baby's mouth, thus preventing tooth decay. Unlike theprior art, the present invention automatically delivers the rinsingsolution to the baby.

Dispensing the second liquid 6a in this manner avoids significantdisadvantages over the prior art. For example, the second liquid 6a isdispensed automatically, activated by the force of gravity, and notmanually. In this way, there is no need to monitor the bottle 2 duringnursing to determine when the second liquid 6a should be released. Inaddition, the first and second liquids 2a and 6a are deliveredindependently of one another, eliminating any need to change liquidsafter delivery of the first liquid 2a to the baby.

Referring to FIGS. 3-6, the alternate valve of the bottle 2 comprises abuoyant lid 14 attached by a hinge 15 to either the opening 13 of thetube 6 or the opening 11 of the armature 10. In FIGS. 3 and 4, thesecond liquid 6a is inserted directly into the armature 10 for supply ofthe second liquid 6a to the tube 6. The cover 12 covers the opening 11to seal the armature 10 after insertion of the second liquid 6a. In FIG.5, the second liquid 6a is inserted directly into the opening 13 of thetube 6, which is placed on the exterior of the bottle 2 for supply tothe armature 10. In FIG. 6, the second liquid 6a is inserted directlyinto the opening 13 of the tube 6, which is also used to dispense thesecond liquid 6a, without the use of the armature 10.

The tube 6 may be filled with the second liquid 6a through an opening 19at the second end 8 of the tube 6 as shown in FIGS. 3-6 and 9-11. Theopening 19 is sealed in the same manner as the openings 11, 13 which aresealed with the cover 12.

In operation, the bottle 2 is filled with the first liquid 2a such asbaby formula or other liquid and the tube 6 is filled with a secondrinsing liquid 6a such as water. When a vertical axis 16 as shown inFIG. 3 is moved such that the nipple 5 is in a substantially inverted ordownwardly directed orientation (FIG. 10), the buoyancy force of thebuoyant lid 14 acts against the opening 13 of the tube 6 or the opening11 of the armature 10, thus preventing the second liquid 6a fromdispensing. When the first liquid 2a of the bottle 2 has substantiallyemptied from the bottle 2, the force of gravity acting on the lid 14 andsecond liquid 6a will overcome the buoyancy force and will force the lid14 to an open position as shown in FIG. 10. Until the contents of thebottle 2 are substantially emptied, the buoyant lid 14 will remain in aclosed position as shown in FIG. 4 and retain the second liquid 6aindependently of the first liquid 2a.

Referring to FIGS. 7-9 and 11, the alternate valve comprises thehook-like projection 20 which is preferably curved and projectssubstantially over the opening 13 to retain the second liquid 6a withinthe tube 6. The second liquid 6a will remain within the tube 6 as longas a sufficient amount of the first liquid 2a remains in the bottle 2 tosubstantially submerge the opening 13 as the first liquid 2a actsagainst the second liquid 6a at the opening 13. However, once the firstliquid 2a is substantially dispensed from the bottle 2 such that thefirst liquid 2a is below the level of the opening 13 as shown in FIG.11, the force of gravity will act on the second liquid 6a and pull thesecond liquid 6a towards the nipple 5. The bottle 2 may be configured tofacilitate drainage of the second liquid as shown in FIG. 7 withoutdeviating from the intent of the invention.

Referring to FIGS. 10 and 11, in operation, the lid 14 and the hook-likeprotrusion 20 releasably retain the second liquid 6a within the tube 6until the first liquid 2a is substantially dispensed from the bottle 2,after which the force of gravity acts on the second liquid 6a when thebottle is at least substantially inverted to release the second liquid6a within the bottle 2. The force of gravity acts on the valve after thefirst liquid 2a is substantially dispensed. In FIG. 10, the buoyantforce of the lid 14 in the direction of the end wall 9 is no longersufficient to overcome the force of gravity acting on the lid 14 and thesecond liquid 6a in the direction of the nipple 5 and the second liquid6a contained within the tube 6 is automatically released into the bottle2. In FIG. 11, the force of gravity acts only on the second liquid 6a asthe hook-like protrusion 20 is stationary. Once the first liquid 2a issubstantially dispensed from the bottle 2, the hook-like projection isnot sufficient to retain the second liquid 6a since the projection 20only substantially covers the opening 13.

Referring to FIGS. 12, 12a and 13, the alternate valve comprises the cap28 having the sealed chamber 27 which provides additional buoyancy andthe aerating tube 26 which may be attached at the first end 7 (FIG. 13)or the second end 8 (FIG. 14) of the tube 6. The sealed chamber 27 maycomprise a variety of configurations without deviating from the intentof the invention. For example, in FIG. 12a, the sealed chamber 27comprises a hollow ball which is attached to the cap 28. In addition,the length and positioning of the aerating tube 26 may be modifiedwithout deviating from the invention.

The buoyant cap 28 retains the second liquid 6a within the tube 6 untilthe first liquid 2a is substantially dispensed after which the force ofgravity acts on the cap 28 and the second liquid 6a to push the cap 28from the opening 13 and towards the nipple 5. As a result, the secondliquid 6a is released into the bottle 2.

In an alternate embodiment, the cap 28 could be utilized alone providedthe cap 28 is formed of a material which is sufficiently buoyant toovercome the force of gravity when the bottle 2 is substantiallyinverted. The buoyancy force of the cap 28 overcomes the force ofgravity as long as the first liquid 2a substantially covers the cap 28.When the first liquid 2a has substantially drained from the bottle 2,the buoyancy force is diminished and the force of gravity pulls the cap28 towards the nipple 5, releasing the second liquid 6a.

Referring to FIG. 14, the valve comprises first and second tubes 29 and30 which are attached to the tube 6 and which release the second liquid6a from the tube 6 to the bottle 2 when the first liquid 2a issubstantially dispensed from the bottle 2. The length and positioning ofthe tubes 29 and 30 may be modified without deviating from the intent ofthe invention. Specifically, the tube 29 may be positioned adjacent thesecond end of the tube 6. In operation, after the first liquid 2a wassubstantially dispensed from the bottle 2 such that the free ends of thetubes 29 and 30 were no longer submerged, the tube 29 intakes air. Thisintake of air releases the suction within the tube 6, and the secondliquid 6a is released through the tube 30 due to the force of gravityacting on the second liquid 6a when the bottle 2 is substantiallyinverted.

While the embodiment of the invention shown and described is fullycapable of achieving the results desired, it is to be understood thatthis embodiment has been shown and described for purposes ofillustration only and not for purposes of limitation. Other variationsin the form and details that occur to those skilled in the art and whichare within the spirit and scope of the invention are not specificallyaddressed.

For example, it should be noted that the first and second liquids 2a and6a could be dispensed as a mixture by changing the placement of theholes 22 or the placement of the aerating tubes 26, 29 and 30. Forexample, dispensing medicine to a baby has typically been accomplishedmanually. Using the present invention, the holes 22 could be positionedmidway between the first and second ends 7 and 8 on the tube 6. Uponfilling the bottle 2 to capacity, the second liquid 6a within the tube 6is released after approximately one half of the first liquid 2a isdispensed. At this point, one half of the second liquid 6a is releasedinto the bottle 2. Similarly, several valves could be placed on the tube6 which results in a staggered release of the second liquid 6a withinthe tube 6. In addition, by modifying the positioning and/or length ofthe aerating tubes 26, 29 and 30, the second liquid 6a could be releasedto mix with the first liquid 2a prior to the substantial delivery of thefirst liquid 2a. Therefore, the invention is limited only by theappended claims.

What is claimed is:
 1. A nursing bottle for automatically rinsing ababy's teeth, comprising:a bottle for storing a first liquid having anopen end for receiving said first liquid and a second closed end; arinsing device defining a container for storing a second liquid, therinsing device having a dispensing end positioned in said bottle todispense said second liquid through said open end of said bottle; anipple mounted on said open end of said bottle to receive said first andsecond liquids from said open end and to dispense said first and secondliquids through a discharge hole of said nipple; and a valve positionedat said dispensing end of said rinsing device, the valve comprising:anouter surface on said dispensing end defining at least one dispensinghole in fluid communication with said container; a stop member; and abuoyant member movable from a first position covering said at least onedispensing hole, to a second position wherein said at least onedispensing hole is at least partially uncovered, the valve forreleasably retaining said second liquid within said container when saidbottle is at least substantially inverted, whereby, when said bottle isat least substantially inverted, said buoyant member is submerged insaid first liquid such that a buoyant force directed towards said closedend of said bottle holds the buoyant member in said first positionagainst said stop member until said first liquid is substantiallydispensed from said bottle, whereupon said buoyant member is releasedfrom the buoyant force and falls toward said second position, thereby atleast partially uncovering said at least one dispenser hole to releasesaid second liquid from said rinsing device into said nipple from whichsaid second liquid can be dispensed through the discharge hole to rinsethe baby's teeth.
 2. The nursing bottle of claim 1, wherein said firstand second liquids are dispensed sequentially and independently of oneanother.
 3. The nursing bottle of claim 1, wherein said buoyant membercomprises a buoyant cap and the stop member comprises a portion of thebuoyant cap.
 4. The nursing bottle of claim 3, wherein said buoyant caphas a sealed chamber for increasing the buoyancy force.
 5. The nursingbottle of claim 3, wherein said outer surface is an annular end wall ofsaid dispensing end, and said annular end wall defines the dispensinghole, and wherein the cap comprises a cap end wall and a sleeveextending from the cap end wall, the sleeve is dimensioned to receivethe annular end wall of the dispensing end such that the cap end wallcovers the dispensing hole, and the cap end wall is the stop member atleast one hole in said rinsing device which is covered by a circularring when said circular ring is substantially submerged within saidfirst liquid, said circular ring being held in position against a pinattached to said rinsing device.
 6. The nursing bottle of claim 1,wherein said buoyant member comprises a buoyant lid mounted to saiddispensing end of said rinsing device and the stop member comprises asurface of the buoyant lid.
 7. The nursing bottle of claim 6, whereinsaid buoyant lid is removably attached to said rinsing device.
 8. Thenursing bottle of claim 1, wherein said rinsing device is removablyattached to said bottle.
 9. The nursing bottle of claim 1, wherein saidrinsing device further comprises a receiving end opposite of saiddispensing end for receiving said second liquid.
 10. The nursing bottleof claim 1, wherein said rinsing device is positioned within saidbottle.
 11. The nursing bottle of claim 10, wherein said second liquidis received within said rinsing device through an extension of saidrinsing device which communicates between the exterior of said bottleand said rinsing device.
 12. The nursing bottle of claim 1, wherein saidrinsing device is positioned externally of said bottle.
 13. The nursingbottle of claim 12, wherein said second liquid is received within saidbottle through an extension of said rinsing device which communicatesbetween said rinsing device and the interior of said bottle.
 14. Thenursing bottle of claim 1, wherein said dispensing end of said rinsingdevice is capable of receiving said second liquid.
 15. The nursingbottle of claim 1, further comprising at least one aerating tube havingfirst and second ends attached to said rinsing device which communicatesbetween said bottle and said rinsing device.
 16. The nursing bottle ofclaim 15, wherein said first end of said at least one aerating tubecommunicates with said bottle, substantially adjacent said nipple, andsaid second end of said at least one aerating tube communicates withsaid rinsing device, substantially adjacent said closed end of saidbottle.
 17. The nursing bottle of claim 1, wherein at least one of saidbottle, said rinsing device, said nipple and said valve are disposable.18. The nursing bottle of claim 1 wherein the outer surface is acylindrical outer surface, the buoyant member is a buoyant ring with anaperture dimensioned to closely receive the cylindrical outer surfacesuch that the buoyant ring is movable from the first position to thesecond position on the dispensing end.
 19. The nursing bottle of claim18 wherein the stop member is attached to the buoyant ring and extendsfrom the buoyant ring into the aperture to contact a lower end wall ofthe dispensing end.
 20. The nursing bottle of claim 18 wherein the stopmember is attached to the dispensing end and extends out from thecylindrical outer surface to contact an upper end wall of the buoyantring.
 21. A nursing bottle for automatically rinsing a baby's teeth,comprising:a bottle for storing a first liquid having an open end forreceiving said first liquid and a second closed end; a rinsing tube forstoring a second liquid having a dispensing end within said bottle fordispensing said second liquid within said bottle; at least one aeratingtube having first and second ends for communicating between said rinsingtube and said bottle, said first end attached to said tube; a nipplemounted on said open end of said bottle for dispensing said first andsecond liquids through a discharge hole of said nipple and a valvepositioned at said dispensing end of said rinsing tube, the valvecomprising:an outer surface on said dispensing end defining at least onedispensing hole in fluid communication with said container; a stopmember, and a buoyant member movable from a first position covering saidat least one dispensing hole, to a second position wherein said at leastone dispensing hole is at least partially uncovered, the valve forreleasably retaining said second liquid within said rinsing tube whensaid bottle is at least substantially inverted, whereby said buoyantmember is submerged in said first liquid producing a buoyant force onsaid buoyant member directed towards said closed end of said bottleuntil said first liquid is substantially dispensed from said bottle,after which said buoyant member falls toward said second position,thereby automatically releasing said second liquid into said nipple tothereby rinse the baby's teeth.
 22. The nursing bottle of claim 21,wherein said first end of said at least one aerating tube is connectedadjacent said second end of said rinsing tube.
 23. A rinsing device forautomatically rinsing a baby's teeth, the device being attached to anursing bottle, the nursing bottle defining a contained storage area fora first liquid, the nursing bottle having a first open end for receivingsaid first liquid and for mounting a nipple having a discharge hole influid communication with the storage area, the nursing bottle having asecond closed end, the rinsing device comprising:a container for storinga second liquid; a dispensing end positioned in said bottle to dispensesaid second liquid to said discharge hole; and a valve at saiddispensing end of said rinsing device, the valve comprising:an outersurface of said dispensing end defining at least one dispensing hole influid communication with said container; a stop member; and a buoyantmember movable from a first position covering said at least onedispensing hole, to a second position wherein said at least onedispensing hole is at least partially uncovered, whereby, when saidbottle is at least substantially inverted, said buoyant member issubmerged in said first liquid such that a buoyant force directedtowards said closed end of said bottle holds the buoyant member in saidfirst position against said stop member until said first liquid issubstantially dispensed from said bottle, whereupon said buoyant memberis released from the buoyant force and falls toward said secondposition, thereby uncovering said at least one dispenser hole, releasingsaid second liquid from said rinsing device into said bottle from whichsaid second liquid can be dispensed through the discharge hole to rinsethe baby's teeth.